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Side-chain interactions - the "Big Three"
Major types of noncovalent interactions that one sees again and again in Biochemistry :1) charge/charge (electrostatic / Coulomb interactions)2) H-bonding3) Hydrophobic interactions .
Dr. Gerry Reeck calls these "The Big Three"
Consider several side chains -- note: side chains -- of amino acids. For each side chain listed, indicate which interaction or interactions (from The Big Three) each side chain could participate in, based on its structure.
For Gly, you would say "none." But for all those I do list the answer will be one, two or even three of The Big Three. Assume pH of 7 in formulating your answers unless otherwise indicated.Val:Phe:His: analyze the form that predominates below pH 6.Tyr:Ser:Met:Lys (at pH below the side chain pKa):
Calculate the molar concentration of an aqueous solution containing 10.25 g of calcium nitrate in 850.mL.
if 7.o moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end.
44.0 mL of 0.140 M and Na2SO4 and 25.0 mL of 0.160 M KCl Indicate the concentration of each ion present ?
How many grams of acetic acid will you need to prepare the 500 mL buffer. Note that the given concentration of acetate refers to the concentration of all acetate species in solution.
During a strenous workout, an athlete generates 1890.0 kj of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
Problem- Experimentally, acetate buffer HC2H3O2-C2H3O2^- can be prepared in different ways. Calculate the approximate pH of an acetate buffer solution prepared by mixing equal volumes of 0.10 M HC2H3O2 and 0.10 M NaC2H3O2 (Ka, HC2H3O2 = 1.8 x 10^-5..
A 9.357g piece of iron with Cs of .449J/g*c is placed in a hot water bath with temperature of 98.3C. The metal is placed in a calorimeter that contains 50.0mL of h20(dh20 is 1.00g/mL) at 24.0C. Explain what the final temperature of the water is.
charles flew the balloon for fifteen miles and stayed in the air for a total flight time of 45 mins. the balloon was
calculate deltag for this reaction under the following conditions assume an uncertainty of 1 in all quantities
Consider a self-adjoint ('hermitian') operator Aˆ. The wavefunction of the system is ψ. Use the rules forcalculating with scalar products (Chapter 2 in the printed lecture notes, or your notes from my Lecture# 2) to show that the expectation value hA..
How many grams of Ca metal are produced by the electrolysis of molten CaBr2 using a current of 30.0 amp for 10.0 hrs
How many mL of water (density = .997g/ml at 25 degree C) are needed to dissolve 10.0g of NH4NO3 in order to prepare a .100m ammonium nitrate solution?
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